Blood Pressures | Blood Pressure | Classes of AntiHypertensives | Ions of tubules and their drug classes | RAAS facts |
---|---|---|---|---|
What is peripheral vascular resistance?
Arterial blood pressure is directly proportional to cardiac output and this.
|
What is hypertensive crises
Systolic pressures > 180mmHg
|
What are alpha-adrenergic blockers?
These agents seek to relive blood pressure by inhibiting normal vasoconstriction mechanisms in the smooth muscles of arterioles and veins.
|
What are the potassium sparing diuretics.
These agents work in the collecting tubule and duct and prevent K+ loss and excrete Na+ followed by water loss.
|
What is angiotensin II?
This product of the RAAS is a powerful vasoconstrictor.
|
What is Cardiac output and peripheral vascular resistance controlled by?
Baroreflexes and the Renin-Angiotensin-Aldosterone System (RAAS)
|
What is 140mmHg or higher.
The corresponding systolic pressure of stage 2 hypertension.
|
What are the ACE inhibitors.
These drugs encourage salty pee by supressing the synthesis of angiotensin II and suppressing aldosterone.
|
What are the loop diuretics.
These drugs inhibit the Na/K/Cl cotransport inthe ascending Henle loop resulting in retention of Na, Cl, and water in the tubule.
|
What is renin
This protein is released from the kidney in response to a drop in blood pressure or fluid volume.
|
What are types of hypertension?
Primary, essential, malignant, resistant.
|
What is 80?
A normal diastolic pressure should be less than this number.
|
What the angiotensin II receptor of vascular muscle.
This is the target site of the "artens" class of drugs. Losarten, valsarten, candesartan, and so on.
|
What are the thiazides?
These drugs inhibit resorption of Na and Cl in the distal convoluted tube. They are the most often used agent of this.
|
What is angiotensinogen
This is released from the liver to react with renin from the kidney.
|
What is pulmonary hypertension.
This form of HTN has no cure and treatment is to lessen symptoms and improve life quality.
|
What is 120-129mmHg?
Elevated systolic pressure is in this range.
|
What are diuretics?
Though the mechanisms by which they work vary, the action of this class of drugs all share the same target area and seek to lower blood volume thus decreasing blood pressure.
|
What are the carbonic anhydrase inhibitors.
Less effective than thiazides or loop diuretics, these agents work in the proximal convoluted tube.
|
What is Aldosterone.
This end product of the RAAS acts on the kidneys to retain NaCl and water.
|
What is isolated systolic hypertension.
This lonely type of hypertension corresponds to ventricular contractions and can produce pressures near 200mmHg.
|
What are end-stage complications of HTN?
Heart disease, heart failure, stroke, and chronic kidney disease.
|
What are the Beta Blockers?
A helpful Pneumonic to remember the varied MOA of this class of drugs is, "A through N" and "O through Z".
|
What are the aldosterone antagonists.
This class of drugs blocks Na and K exchange, keeping Na in collecting duct at the cortical level.
|
What is angiotensin converting enzyme.
This enzyme is released from the lungs to react with another enzyme to form a powerful vasoconstrictor.
|